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CORAL REEFS Coral reefs are a delightful feature of the ocean, which is part of its topography. These unique generation of living organisms found in the seas of the world around the equator, but they are not formed through geological processes. Reefs are solid as a rock structure, which for millennia have built tiny organisms called coral. It turns out that the reefs - is the largest installations, which it has ever been created on this planet acts (albeit unconscious) of living beings. Great Barrier Reef Corals belong to jellyfish, as they are gelatinous creatures that have occurred from the same family tree. They begin life as tiny, microscopic polyps, floating in the sea and on its surface, over time they have taken root on a reef and spend the rest of their lives under its protection. Their tiny bodies recovered from sea water minerals (calcium carbonate) and use them to form a solid shell around their bodies. Now that coral is a safe haven from all the sea creatures who would not mind them for lunch. Coral reef close after the death of coral his defensive shell remains in place, adding a small piece of the new "masonry" to the existing reef. This process is called fouling and, as you can imagine, is very slow. The accumulation of these small pieces of the reef, lasting thousands of years, leads to the formation of a very robust design. Coral Island Coral reefs are typically located in warm tropical seas surrounding the equatorial belt. Usually corals inhabit the sea around the secluded volcanic island, was adopted by the new rock below the surface. Great Barrier Reef, near the southern coast of Australia, is the largest coral reef in the world. It stretches for 1600 miles (2600 km) and covers over 133,000 square miles (350 sq. km) of the ocean floor, consists of 2,900 individual reefs. It is assumed that the Barrier Reef is home to over 350 species of different corals, as well as more than 70 different habitats. Scientists believe that the reef about 20 thousand years, but geologists, which extract samples from the depth of the reef, it is believed that his age falls short of half a million years. See also: Huge biosystem, visible from space Land Basin ... It flows from the rocks water ordinary record of a tsunami wave height Desert-record the largest lake in the world based on the volume and surface area record highs over the world have a rival Everest! The deepest point of the oceans cuho Here, as in the space where much warmer planet Fridge not very deep, but one of the longest caves Powerful tremors did not bring trouble, but the tsunami places of extreme temperatures longest river in the world as formed the largest seamounts Dead Sea - why is it called so? The place where the biggest annual rainfall Ice celestial bombardment Giants ice kingdom's longest bridge in the world